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针对胶囊粘液封孔测定煤层瓦斯压力受到钻孔长度限制的现状,在快速测定煤层瓦斯压力的基础上,对胶囊粘液封孔长距离钻孔快速测定煤层瓦斯压力的可行性进行了分析,研究了封孔端孔口大、测压气室孔口小的新技术。现场应用该技术取得了良好的效果。
In view of the fact that the gas pressure in the coal seam is limited by the length of the borehole by measuring the gas pressure in the muck of the capsule and the gas pressure in the coal seam is rapidly measured, the feasibility of rapidly measuring the gas pressure in the coal seam by the mucus sealing long distance drilling is analyzed. Sealing the end of the hole, pressure chamber orifice small new technology. Field application of the technology has achieved good results.